Picture this: You’re on vacation, and are doubled over with the world’s worst cramps and terrible back pain. It’s just the period from hell, right? For Jennifer West, it wasn’t her monthly gift, but instead the surprise of her life. She was in labor, and never even knew she was pregnant!

Just how common is it to be pregnant and not know it? Would you suspect it if you had irregular periods and gained, say, 20 lbs? Read the story, and leave your comments below.